Home / 404,040.81-557,559.52-220,275.41

Finding the Fourth Proportional to 404,040.81, 557,559.52 and 220,275.41

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Solution

The fourth proportional to 404,040.81, 557,559.52 and 220,275.41 is: 303,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,040.81 : 557,559.52 = 220,275.41 : x
  2. Step 2: Convert to fraction form
    404,040.81/557,559.52 = 220,275.41/x
  3. Step 3: Cross multiply
    404,040.81x = 557,559.52 × 220,275.41
  4. Step 4: Simplify right side
    404,040.81x = 122,816,651,867.40
  5. Step 5: Solve for x
    x = 122,816,651,867.40/404,040.81
  6. Step 6: Final answer
    x = 303,970.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.